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Dmitriy789 [7]
3 years ago
6

The value of (-7)2 is negative. True False

Mathematics
2 answers:
nexus9112 [7]3 years ago
5 0

Answer:

true multiplying a positive by a negative makes a negative number. think of it like flipping upside down. You will only be right side up if you flip upside down again after already being upside down.

fomenos3 years ago
3 0

Answer: True

Step-by-step explanation: A positive times a negative integer always equals a negative. That means (-7)2= -14

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The State Education Department requires local school districts to keep these records on all students: age, race or ethnicity, da
IgorC [24]

Answer:

2.Race or Ethnicity

3.Disabilities or Special Needs

7.Current Grade Level

Step-by-step explanation:

A Categorical variable is a non numerical variable, and usually is defined as "a variable that allows to assign categories but we cannot clearly order the variables".

If a variable is not Categorical can be ordinal or or numerical.

Ordinal when we can create a order from the data. And numerical when is not categorical or ordinal.

1.Reading Test Score

False, usually the scores are quantitative or numerical variable since are measured on units..

2.Race or Ethnicity

True, is categorical variable since we don't have an order for this.

3.Disabilities or Special Needs

True, we can consider this variable as categorical since we don't have an order and can't be expressed in numerical terms.

4.Age

False, is a quantitative variable or numerical

5.Mathematics Test Score

False the scores represnt a numerical variable.

6. Days Absent

False, that can be considered as quantitative if we count the days absent

7.Current Grade Level

True. That can be considered a categorical variable since we can't express this variable with numbers.

So then the correct choices are:

2.Race or Ethnicity

3.Disabilities or Special Needs

7.Current Grade Level

8 0
3 years ago
Which of the following is equal to 7x509
Luden [163]
I need more information
3 0
3 years ago
Which number best completes the pattern ?
Annette [7]

Answer:

11

Step-by-step explanation:

the common difference in the last sequence is 5 which can be gotten by subtracting the first term minus the second term.. therefore to find the next term you subtract 5 from the previous term,and 16-5 is 11.

I hope this helps

5 0
3 years ago
Read 2 more answers
Consider two populations of coins, one of the pennies and one of quarters. A random sample of 25 pennies was selected, and the m
Rudik [331]

Answer:

d. No, the conditions for normality have not been met because the sample size for the pennies is not large enough and no information is given about the distributions of the populations.

Step-by-step explanation:

In this example, we learn that the sample taken of pennies was of 25, while the sample of quarters was of 35. According to the central limit theorem, a sample must be equal to or larger than 30 for the theorem to hold. The theorem states that when random variables are added, they tend towards a normal distribution even if the original variables themselves are not normally distributed. In this question, the sample of pennies is not large enough for the theorem to hold. On top of this, we have no information about the distribution of the populations. Therefore, the conditions for normality have not been met.

6 0
4 years ago
Goldie Goldfish, a speed swimmer, loves to race around the park’s pond, which is about 0.5 miles around. If she can swim 20 laps
lord [1]

Answer:

5mph

Step-by-step explantion:

0.5 times 20 equals 10

10/2 equals 5

7 0
3 years ago
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